Product Overview
Author: Usborne
- Age Range: 3 years and up
- Paperback: 10 pages
- Publisher: EDC
Young children will love moving the sliders to do the simple subtraction problems in this book. A brand new series of interactive board books to make it easier for children to learn math skills. Slide the simple mechanisms and see the picture change to show the result of the additions and substractions, making math visual, concrete and easy to understand!
